Loading...
UPPSC Prelims 2024GS-IQ. 71 of 224
Q. 711 markMedium
UPPSC Prelims 2024·GS-I
A bus covers the first half of a certain distance with speed v₁ and the second half with a speed v₂. The average speed during the whole journey is :
(a)v₁v₂ / (v₁ + v₂)
(b)2v₁v₂ / (v₁ + v₂)
(c)(v₁ + v₂) / 2
(d)√(v₁v₂)